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<p>"Our ability to adapt is deeply rooted within our brain’s chemical
base code. Although modern AI and neurocomputation have largely focused
on loosely recreating the brain’s electrical signals, chemicals are
actually the prima donna of brain-wide neural transmission."</p>
<p>"Chemical neurotransmitters not only allow most signals to jump from
one neuron to the next, they also feedback and fine-tune a neuron’s
electrical signals to ensure they’re functioning properly in the right
contexts. This process, traditionally dubbed neuromodulation, has been
front and center in neuroscience research for many decades. More
recently, the idea has expanded to also include the process of directly
changing electrical activity through electrode stimulation rather than
chemicals."</p>
<p>"Neural chemicals are the targets for most of our current medicinal
drugs that re-jigger brain functions and states, such as
anti-depressants or anxiolytics. Neuromodulation is also an immensely
powerful way for the brain to flexibly adapt, which is why it’s perhaps
surprising that the mechanism has rarely been explicitly incorporated
into AI methods that mimic the brain."</p>
<p>"This week, a team from the University of Liege in Belgium went old school. Using neuromodulation as inspiration, they <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0227922">designed a new deep learning model</a>
that explicitly adopts the mechanism to better learn adaptive
behaviors. When challenged on a difficult navigational task, the team
found that neuromodulation allowed the artificial neural net to better
adjust to unexpected changes."</p>
<p>“For the first time, cognitive mechanisms identified in neuroscience
are finding algorithmic applications in a multi-tasking context. This
research opens perspectives in the exploitation in AI of
neuromodulation, a key mechanism in the functioning of the human brain,”
said study author Dr. Damien Ernst."</p><p><br></p><p><a href="https://singularityhub.com/2020/02/11/neuromodulation-is-the-secret-sauce-for-this-adaptive-fast-learning-ai/">https://singularityhub.com/2020/02/11/neuromodulation-is-the-secret-sauce-for-this-adaptive-fast-learning-ai/</a></p>
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